<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .div1 {
            width: 0px;
            height: 0px;
            background-color: transparent;
            padding: 10px;
            background-color: transparent;
            border-top: 20px solid yellow;
            border-right: 20px solid black;
            border-bottom: 20px solid pink;
            border-left: 20px solid green;
            border-radius: 50%;
        }
        .div2 {
            width: 0px;
            height: 0px;
            /* background-color: pink; */
            padding: 10px;
            border-top: 60px solid transparent;
            border-right: 60px solid transparent;
            border-bottom: 60px solid red;
            border-left: 60px solid transparent;
        }
    </style>
</head>
<body>
    <div class="div1"></div>
    <div class="div2"></div
    </body>
</html>